Consolidated Statements Of Changes In Stockholders' Equity (USD $) In Thousands, except Share data	Total	Common Stock	Capital in Excess of Par Value	Retained Earnings	Accumulated Other Comprehensive Loss	Treasury Stock	Noncontrolling Interest
Balances at Dec. 31, 2009	$ 728,026	$ 199	$ 532,144	$ 437,524	$ (64,672)	$ (189,250)	$ 12,081
Balances (in shares) at Dec. 31, 2009		101,659,924				(10,200,387)
Deconsolidation of Variable Interest Entity (Note 12)	(12,081)						(12,081)
Net income	137,047			137,047
Derivative instruments, net of tax	35,769				35,769
Pension and postretirement plans, net of tax	(4,806)				(4,806)
Stock repurchases, shares						(1,548,771)
Stock repurchases	(39,184)					(39,184)
Exercise of stock options (in shares)						486,887
Exercise of stock options	7,884		(1,202)			9,086
Issuance of performance-contingent restricted stock awards			(4,102)			4,102
Issuance of performance-contingent restricted stock awards (in shares)						220,640
Issuance of deferred stock awards			(631)			631
Issuance of deferred stock awards (in shares)						33,920
Amortization of share-based compensation awards	12,995		12,995
Income tax benefits related to share-based payments	1,022		1,022
Performance-contingent restricted stock award forfeitures and cancellations						(4,425)
Performance-contingent restricted stock awards forfeitures and cancellations			83			(83)
Issuance of deferred compensation, shares						642
Issuance of deferred compensation			(15)			15
Dividends paid per common share	(70,882)			(70,882)
Balances at Jan. 01, 2011	795,790	199	540,294	503,689	(33,709)	(214,683)
Balances (in shares) at Jan. 01, 2011		101,659,924				(11,011,494)
Net income	123,428			123,428
Derivative instruments, net of tax	(38,813)				(38,813)
Pension and postretirement plans, net of tax	(39,525)				(39,525)
Adjustment for 3 for 2 stock split (Note 14) (in shares)		50,828,084				(5,375,912)
Adjustment for 3 for 2 stock split (Note 14)	(39)			(39)
Stock repurchases, shares						(1,155,103)
Stock repurchases	(26,598)					(26,598)
Exercise of stock options (in shares)						803,090
Exercise of stock options	12,933		(2,512)			15,445
Issuance of performance-contingent restricted stock awards			(4,213)			4,213
Issuance of performance-contingent restricted stock awards (in shares)						216,050
Issuance of deferred stock awards	(41)		(1,160)			1,119
Issuance of deferred stock awards (in shares)						56,505
Amortization of share-based compensation awards	12,982		12,982
Income tax benefits related to share-based payments	2,932		2,932
Performance-contingent restricted stock award forfeitures and cancellations						(51,630)
Performance-contingent restricted stock awards forfeitures and cancellations			961			(961)
Issuance of deferred compensation, shares						11,672
Issuance of deferred compensation			(219)			219
Contingent acquisition consideration	(5,000)		(5,000)
Dividends paid per common share	(79,081)			(79,081)
Balances at Dec. 31, 2011	758,968	199	544,065	547,997	(112,047)	(221,246)
Balances (in shares) at Dec. 31, 2011		152,488,008				(16,506,822)
Net income	136,121			136,121
Derivative instruments, net of tax	10,808				10,808
Pension and postretirement plans, net of tax	(13,428)				(13,428)
Shares issued for acquisition	45,887		16,628			29,259
Shares issued for acquisition (in shares)						2,178,648
Stock repurchases, shares	(935,742)					(935,742)
Stock repurchases	(18,726)					(18,726)
Exercise of stock options (in shares)						1,047,297
Exercise of stock options	13,881		(329)			14,210
Issuance of deferred stock awards			(610)			610
Issuance of deferred stock awards (in shares)						45,405
Amortization of share-based compensation awards	9,373		9,373
Income tax benefits related to share-based payments	2,225		2,225
Performance-contingent restricted stock award forfeitures and cancellations						(45,252)
Performance-contingent restricted stock awards forfeitures and cancellations			606			(606)
Issuance of deferred compensation, shares						1,647
Issuance of deferred compensation			(34)			34
Dividends paid on vested performance-contingent restricted stock awards and deferred share awards	(255)			(255)
Dividends paid per common share	(86,234)			(86,234)
Balances at Dec. 29, 2012	$ 858,620	$ 199	$ 571,924	$ 597,629	$ (114,667)	$ (196,465)
Balances (in shares) at Dec. 29, 2012		152,488,008				(14,214,819)